1425012421550 has 48 divisors (see below), whose sum is σ = 2657665575600. Its totient is φ = 568469664000.

The previous prime is 1425012421543. The next prime is 1425012421583. The reversal of 1425012421550 is 551242105241.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 128849921 + ... + 128860979.

It is an arithmetic number, because the mean of its divisors is an integer number (55368032825).

Almost surely, 2^{1425012421550} is an apocalyptic number.

1425012421550 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1425012421550 is a deficient number, since it is larger than the sum of its proper divisors (1232653154050).

1425012421550 is a wasteful number, since it uses less digits than its factorization.

1425012421550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17781 (or 17776 counting only the distinct ones).

The product of its (nonzero) digits is 16000, while the sum is 32.

Adding to 1425012421550 its reverse (551242105241), we get a palindrome (1976254526791).

The spelling of 1425012421550 in words is "one trillion, four hundred twenty-five billion, twelve million, four hundred twenty-one thousand, five hundred fifty".